NEXUS™ Series Air-Cooled Screw Chiller
Arvand Company, as a pioneer in the HVAC industry in the region, has utilized cutting-edge global knowledge and expertise in designing components and employing the most advanced equipment in the production of HVAC systems, including compression liquid chillers. This has established the Arvand brand as a consistent symbol of quality and trust. Now, with the localization of a new type of flooded shell-and-tube evaporators, the company has taken yet another step toward enhancing the efficiency and quality of high-capacity compression liquid chillers.

Air-Cooled Screw Chiller with Microchannel Condenser and Flooded Evaporator
The NEXUSTM series chillers, equipped with screw compressors, microchannel condensers, and flooded evaporators, offer stable performance with high efficiency and low power consumption to our valued customers. The use of R134a refrigerant, low-noise axial fans, and programmable controllers makes the NEXUSTM series chillers suitable for all industrial, residential, hotel, office, hospital, mall, and other applications.
By using flooded evaporators and micro-channel condensers, we have been able to increase the capacity and efficiency of the devices while reducing their price and size. This series of chillers is offered in two main groups: “Low Noise” and “Standard Noise.” The Low Noise series chillers, equipped with compressor soundproof cabins and “Night Mode” operation, are designed to produce the lowest noise levels throughout the day and night. The noise level in these chillers is reduced by up to 20% compared to the Standard Noise series. These features make the Low Noise series an ideal choice for noise-sensitive environments such as residential complexes, hotels, hospitals, and more.
Both groups of these chillers are designed in four classifications: T3, T2, T1, and ECO series. Each series has its own unique features and specifications to cater to different needs and conditions.
T3 classification:
This series of models is designed to operate in the tropical climate conditions (maximum temperature of 52°C to 55°C). The Eurovent energy grade class is at the highest level (A, A+). The T3 chiller will have a higher price compared to other series due to robust design and manufacturing features.
T2 classification:
This series of models is designed to operate in hot and moderate weather conditions (maximum temperature of 50°C to 52.5°C). The Eurovent energy classes are of A and B.
T1 classification:
This series of models is designed to have a lower price than the T3 and T2 series, and an Eurovent energy class of B and C. The operating temperature conditions of this device (maximum temperature of 46°C to 50°C) are compatible with most regions of the country. If you’re seeking a device that can operate year-round, the T1 series model is undoubtedly the best choice
classification ECO:
The ECO series represents the most economical offering in Tahvieh Arvand’s air-cooled screw chiller lineup. These units are designed for regular applications. Notably, the maximum ambient operating temperature for this series range from 43°C to 48°C, making them suitable for use in most regions with moderate climates.
Standard physical and operational features:
- Operates with R134a refrigerant
- Energy efficiency (EER) up to 3.3
- Very quiet axial fans and variable speed
- Flooded Shell & Tube evaporator
- High efficiency microchannel condenser
- Cooling capacity range from 400 to 1800 kilowatts
- Operating range from -15°C to 54°C ambient temperature
- 4-stage capacity control (25%, 50%, 75%, and 100%) in each circuit
- Adjustable controller with the ability to connect to the integrated building ventilation control system (BMS) via the MODBUS protocol
Reliability Features:
- Low pressure switch,
- High pressure switch,
- Electronic expansion valve,
- Safety valve in Refrigerants Circuits,
- Designed with consideration of ASME, TEMA, AHRI, and ASHRAE standards,
- Galvanized structure with electrostatic painting resistant to harsh environmental conditions,
Available options:
- Multimeter,
- Water flow switch,
- Soft start of the compressor,
- Continuous capacity control,
- Chassis guard grill,
- Condenser fan sound diffuser,
- Liquid injection for compressor oil cooling,
- Graphical user interface display (HMI),
- spring vibration isolators with the ability to damp up to 95% of chassis vibrations,
- Compressor soundproof Jacket Or cabin (Low Noise series are equipped with this cabin as standard),
Advantages forNEXUS™ Series Air-Cooled Screw Chiller:










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